Welcome or Not Welcome?

This weekend was Freshman initiation for gymnastics. We weren't really supposed to call it "initiation" so we called it "welcoming". We all met up at our captains house at midnight and played games 'till around like 3:00am. Then we got all of out toilet paper and forks together and got into three cars. We drove around the area to each of the freshman's houses and put toilet paper all over the trees and forked their yards. This was fun, but cold. After we finished doing that to every freshman's yard, we went back around and went into the freshman's house and turned on the light in their room and yelled at them to get up. We blindfolded each freshman and put them into the cars. We were yelling at them in the cars to sing to the music that was playing and bossing them around. (This is what they do every year.) Then we made them dress up in funny clothes without seeing what they were and take pictures with them blindfolded. 

The only thing was that someone said that we couldn't post the pictures on facebook or some other blog like that because it is considered hazing. I wasn't that surprised when they said that it could look like hazing, but it was really just a fun thing to do and there was no harm in any of it. We made sure to talk to all the parents before just in case they didn't like the idea or didn't want us to fork their yards. Would this be considered hazing if we didn't hurt the freshman and asked their parents for permission to wake them up early in the morning? I didn't know what to think when they said that we cant post the pictures because it is considered hazing. 

What do you think about doing "Freshman Welcoming" for a sport?